Ok, I thought I would give this shifter handle a try. After all, I got it for $20! It should give me just enough pull back on my pro 5.0 shifter... time will tell.
http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&item=110321036159&sspagename=STRK%3AMEWNX%3AIT&viewitem=